Number | Name | Date | Kind |
---|---|---|---|
2276382 | Francis | Mar 1942 | |
2408221 | Michel | Sep 1946 | |
4169543 | Hall | Oct 1979 |
Number | Date | Country |
---|---|---|
421601 | Jan 1975 | SUX |
Entry |
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Publication by H. A. Stoess, Jr. entitled Pneumatic Conveying, 1970, pp. 17, 18, 86 and 87. |